Insulator support



April 28, 1931. E. w. BRADY 1,802,965

INSULATOR SUPPORT Filed Feb. 6, 1929 2 Sheets-Sheet 1 April 28, 1931.

E. w. BRADY INSULATOR' SUPPORT Filed Feb. 6. 1929 2 Sheets-Sheet 2 the spaced lugs 40.

through insulator 15 and through opening 12 in element 10, element being provided with oppositely disposed axially directed radial slots 25 and 26 which open into openng12 and provide clearance for lugs 16 and In assembling the insulator on red 14, the end of rod 14 is inserted into opening 12 with lugs 16 and 17 disposed in slots and 26,

ed 14 being threaded through the opening in insulator 15 and then through opening 13 in member 11, the openings 23 and 24 providing clearance for lugs 16 and 17. After rod 14 has been threaded through opening 13, sufficient pressure is brought to bear upon the opposite end of the rod to compress spring 20 to permit rod 14 to be rotated to bring lugs 16 and 17 opposite openings or sockets 18 and 19, whereupon the rod 14 may be released to permit lugs 16 and 17 to seat in sockets 18 and 19. It is to be noted that sockets 18 and 19 do not extend entirely through member 11 but extend inwardly a suflicient distance to provide seats for lugs 16 and 17.

Elements 10 and 11 in the preferred embodiment illustrated in Figs. 1 to 6, inclusive, form the arms of a clevis 27 in which is mounted a lag screw 28, by means of which the clevis may be mounted on a telegraph pole or other uitable support.

In Figs. 7 to 11, inclusive, I have shown a modification which embodies several addi: tional features of the invention, herein the reference numeral 29 indicating an elongated strap of channeled cross-section provided adjacent itsv ends with keyhole openings 30 and 31 in which are receivedstems 32 and 33 of studs 34 and 35, stud 34 being mounted in a clevis 36, while stud 35 is mounted in clevis 17. Studs 34 and 35 have laterally extending substantially T-shaped heads 38 and which may be passed through keyhole openings 30 and 31 and rotated to be received between lugs 40. which are disposed in pairs on either side oi keyholes 30 and 31, as shown particularly in Fig. 8 of the drawings. These lugs may be formed by displacing the metal of the strap inwardly, as shown in Fig. 10, or in any other preferred manner.

Between the clevis 36 and strap 29 and mounted'on stud 34 is a spring 41 which urges the clevis 36 outwardly from the strap 39 and thus the vT-head 38 of the stud into tight engagement'with the strap 29 between A similar spring 42 is mounted on stud 35, between clevis 37 and strap 29, which urges the T-head 39 into tight engagement with the strap 29, between the cooperating lugs 40. Olevis 36 is provided with oppositely disposed arms 43 and 44 which are provided with aligned openings 45 and 46, while clevis 37 is provided with oppositely disposed arms 47 and 48, which are provided with alignedjopenings 49 and 50', the openings in clevises 36 and 37 being in alignment when the clevises are mounted on the strap 29, whereby a rod 56, which is quite similar in form to rod 14, may be threaded through the openings, and through the insulators 51 and 52, to support the latter on the clevises between the respective arms thereof. On opposite sides of the lower end of rod 56 are lugs 53, which are quite similar to the lugs 16 and 17 on rod 14, clevis arm 48 being provided with sockets similar to sockets 18 and 19 in arm 11 for the reception of lugs 53, while on the upper end of rod 56 is a spring 54, one end of which bears against clevis arm 43, while the opposite end bears against lugs 55 on rod 56. Opening 49, in arm 47 of clevis 37, is provided with oppositely disposed slots, to permit the threading of the rod therethrough, while the opening 50 in arm 48 is provided with oppositely disposed slots to permit the threading of the rod therethrough, these slots being arranged at right angles to the slots in arm 49, in a sim:

ilar manner to the slots in arms 10 and 11 of the form shown in Figs. 1 to 6, inclusive. Openings 45 and 46 in arms 43 and 44, may be slotted in a similar manner, whereby it is necessary to rotate the rod 56 a quarter of a turn between adjacent clevis arms before the rod may be inserted or withdrawn through the openings.

In the form shown in Figs. 7 to 11, inelusive, the clevises may be readily assembled on the strap by inserting the studs through the openings therein and rotating them until the T-shaped heads are locked between the lugs, whereupon the openings in the clevises are in alignment and will permit the insertion of the rod. the clevises and rotated into locked engagement therewith in a manner similar to that shown in Figs. 1 to 6, inclusive. When the rod 56 is mounted in the clevises it looks the latter against turning movement on the strap and thus prevents the clevises from becoming disengaged from the strap.

While I have shown a preferred embodiment of my invention, it is to be understood that the same is not to be limited to all the details shown but is capable of modification and variation within the spirit of the inven tion and the scope of the appended claims.

\Vhat I claim is:

1. In an insulator support, a pair of spaced insulator supporting elements, stems one on each of said elements, means on said stems for attaching them to a common supporting member by rotational movement relatively thereto. and a rod-like element passing through both supporting elements and securing them against rotational movement on the supporting member when attached thereto.

2. In an insulator support, a pair of spaced insulator supporting elements, stems one on each of saidele'ments; said stems being provided with T-shaped heads, a supporting The rod 56 is inserted through member provided with spaced openings there in through which the T-shaped heads of the stems may be thrust and rotated into locking engagement with the member, and a rod-like -element passing through said supporting elements and securing the stems against rota tional movement when locked to said memher.

3. In an insulator support, a rod-like element on which the insulator may be threaded and a plurality of spaced means for supporting said rod, said means being provided with openings through which said rod may be threaded, said rod being pinched at diametrisally opposite points near one end to form radially projecting arms adapted to engage one of the rod supporting means to prevent withdrawal of the rod through the openings, the openings in the rod supporting means be- -ng provided with radially disposed slots pro viding clearance for the radially projecting arms, said radially projecting arms being adapted to engage one of the rod supporting means on the side thereof remote from the 'nsulator upon being threaded through the openings and rotated to hold the rod against return movement through the openings, means for preventing rotation of the rod when so supported, said last-named means :omprising grooves cut in the remote face of the supporting means in which the radially extending arms on the rod are received, and means for holding said arms in said grooves, comprising a coiled spring mounted on the :od on the opposite end thereof from the radially extending arms, one end of the spring bearing against one of the supporting means and the adjacent end of the rod being pinched to provide arms for supporting the md of the spring.

4. In an insulator support, a pair of spaced insulator supporting elements, stems one on each of said elements, means on said stems for attaching them to a common supporting inember by rotational movement relatively thereto, a rod-like element passing through both supporting elements and securing them against rotational movement on the supporting member when attached thereto, and cooperating means on the rod-like element and the supporting elements for preventing withdrawal of the rod-like element from the supporting elements.

5. In an insulator support, a pair of spaced nsulator supporting elements, stems one on each of said elements, means on said stems for attaching them to a common supporting member by rotational movement relatively thereto, and a rod-like element passing hrongh both supporting elements and securing them against rotational movement on the supporting member when attached thereto, cooperating means on the rod-like element and the supporting elements operable upon .nsert-ion and rotation of the rod-like element in the supporting elements to prevent withdrawal of the rod-like element from the supporting elements.

In witness whereof, I have hereunto set my hand this 30th day of January, 1929.

EDMUND V. BRADY. 

